<ng-template #popoverTpl>
  <div [class]="class"
       [innerHtml]="html">
  </div>
  <ng-content></ng-content>
</ng-template>
<i [ngClass]="iconClass ? iconClass : [icons.questionCircle]"
   aria-hidden="true"
   [ngbPopover]="popoverTpl"
   (click)="$event.preventDefault();">
</i>
